Serious Question

If disassembling a program is a easy task to do and compiling a program from org src -> assembly -> machine code is a easy task then why is machine code -> assembly -> org src such a hard task?


For languages like C/C++,etc

>>2
But then wouldn't the decompiled org src then look like a super OPTIMIZED version of the true org src?



A better question: why can't be UNOPTIMIZED